Meat-cutter



2 Sheets-Sheet 1.

(No Model.)

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(No. Model.)

2 Sheets-Sheet 2. E. RENNBR 8s J. HGPBAUBR. MEAT GUTTER.

.WLM/1,527. Patented June 23,1891.

UNITED STATES EDMUN D RENNER AND JOHN HOFBAUER, OF PHILADELPHIA,PENNSYLVANIA.

PATENT GEEICE.

MEAT-CUTTER.

SPECIFICATION forming part of Letters Patent No. 454,527, dated June 23,1891.

Application iiled February 24, 1891. Serial No. 382,644. (No model.`

To all whom, it may concern:

Be it known that we, EDMUND RENNER and JOHN HOFBAUER, both citizens ofthe United States, residing in the city of Philadelphia, State ofPennsylvania, have invented a nevsr and useful Meat-Cutter, of which thefollowing is a specification.

This invention relates to meat-mincing machines of the class in which arotary knife is used.

Our object is the construction of an efficient machine which shalleasily be kept clean and free from acids and in good cutting con dition.

In the annexed drawings, Figure l is a front elevation, Fig.2 a sideelevation, and Fig. 3 a plan, of said machine. Fig. 4 is a verticalsection of the same on the line u u of Fig. 2. Fig. 5 is a verticalsection of the same on the line o o of Fig. 3; Fig. 6, adetail plan ofthe knife used in a single-knife machine, and Fig. 7 a section of thesame on theline w w of Fig. 6. Fig. 8 is a plan of a knife provided withremovable cutting-edges, and Fig. 9 asection of the same on the line xof Fig. 8. Fig. l0 is an end elevation of the knife-carrier in atwo-knife machine, and Fig. ll a longitudinal section of the same on theline yyof Fig. 10. Fig. l2 is a plan of a knife of the form used in atwoknife machine, and Fig. 13 a section of the same on the line e' z ofFig. l2. Fig. 14 illustrates the form in cross-section of the interiorspace or chamber of the casing.

Similar letters of reference denote similar parts in the severalfigures.

The hopper a, legs b, and casing c, omitting that portion of the casingreferred to below as a perforated plate, constitute an integral casting.

d is a perforated plate forming part of casing c, to which it isremovably attached by means of lugs and tap-bolts d.

e is the knife-carrier, which is a solid cylinder provided with journalsand a diametrical mortise g, Fig. 4.

7L represents the knife, which slides freely in mortise g, its twocutting-edges-one at each end-facing in opposite directions andtraveling in close Contact with the interior surface of the casing.

It will be seen that the cross-section of the inclosed space or chamberc of the casing departs from the form of a circle, being composed ofarcs of three intersecting circles and being represented by the fulllines in Fig. 14, wherein the portions 7L h and c' 'i' are arcs of acircle described from a center marked j, the portion 7M) an arc of acircle described from a center marked 1c, and the portion L' z" an arcof a circle described from a center marked Z.

The interior surface of the casing cis practically smooth-z'. e.,without ribs or projections. The knife-carrier e is journaledeccentrically Within the chamber c in contact with the chamber Wall orcasing at one side.

m represents a cutting-bar of steel placed at the throat of the hopperiiush with the chamber-Wall and forming a continuation of that wall. Ascrew-threaded lug proceeding from the back of bar m passes through anaperture o and engages a nut or set-screw by which said bar is removablysecured in its position.

The throat of hopper a is rectilinear in cross-section, (see Fig. 3,) asopposed to round, oval, or other curvilinear form, it having been foundthat when the throat has the last-named form the meat will not passautomatically into chamber c.

The cutting-edge of the knife h may consist of removable pieces securedto the body of the knife, as indicated in Figs. 8 and 9.

Then it is desired to use two knives, the knife-carrier e is providedwith two lnortises crossing each other at right angles, as indicated bydotted lines in Fig. l0. f', Fig. l2, represents the knives used in suchcase, each knife being provided with a recess r,wl1ich is made largeenough to permit the knives to slide freely in their respective mortiseswithout interfering with each other.

IVhen more than one knife is to be used, one end of the knife-carrier ismade removable, as shown in Fig. ll, to admit of introduction of thesecond knife into its mortise. The knife-carrier c rotates in thedirection of the arrow, Fig. 4. The meat in the hopper c passes down thethroat of the hopper receiving a primary cutting as it enters chamber cby the opposing action of the bar m and the knife or knives, and isdriven by the latter into the wedgingspace bounded by said throat, thepoint of contact of the knife-car- IOO rier with the casing-Wall, lthebody of the knife-carrier, and the perforated plate, and is forcedthrough the perforations in plate d in a more or less finely-dividedstate, according to the size of the perforations in plate d.

We claiml. In a meat-cutter, the combination of,

first, a casing consisting in part of a solid first, a casing consistingin part of a solid Wall having a plain interior surface and in part of aperforated plate, said casing inclosing a chamber o' of the curvilinearform described; second, a cylindrical knife-carrier arrangedeccentrically in' and in contact with the Wall of said chamber at oneside thereof, said knife-carrier being provided with one or -Inorediametrical inortises; third, a knife working freely in each suchm0rtise,while its opposite ends or cutting-edges travel in close Contactwith the interior surface of said casing, and, fourth, acutting-bar m,located at the throat of the device and forming a continuation of thecasing-Wall, substantially as and for the purpose 'SefO'rh .Y e p, t

EDMUND RENNER. JOHN HOFB'AUER'. Witnesses:

J. E. SHAW, A. P. WILLTs.

